Merge pull request #504 from mwilliamson/master

Don't call iterable.toArray in _.toArray if not a function
This commit is contained in:
Jeremy Ashkenas
2012-04-02 12:27:38 -07:00
2 changed files with 11 additions and 3 deletions

View File

@@ -264,8 +264,8 @@ $(document).ready(function() {
test('collections: shuffle', function() {
var numbers = _.range(10);
var shuffled = _.shuffle(numbers).sort();
notStrictEqual(numbers, shuffled, 'original object is unmodified');
var shuffled = _.shuffle(numbers).sort();
notStrictEqual(numbers, shuffled, 'original object is unmodified');
equal(shuffled.join(','), numbers.join(','), 'contains the same members before and after shuffle');
});
@@ -278,6 +278,14 @@ $(document).ready(function() {
var numbers = _.toArray({one : 1, two : 2, three : 3});
equal(numbers.join(', '), '1, 2, 3', 'object flattened into array');
var objectWithToArrayFunction = {toArray: function() {
return [1, 2, 3];
}};
equal(_.toArray(objectWithToArrayFunction).join(', '), '1, 2, 3', 'toArray method used if present');
var objectWithToArrayValue = {toArray: 1};
equal(_.toArray(objectWithToArrayValue).join(', '), '1', 'toArray property ignored if not a function');
});
test('collections: size', function() {

View File

@@ -304,7 +304,7 @@
// Safely convert anything iterable into a real, live array.
_.toArray = function(iterable) {
if (!iterable) return [];
if (iterable.toArray) return iterable.toArray();
if (iterable.toArray && _.isFunction(iterable.toArray)) return iterable.toArray();
if (_.isArray(iterable)) return slice.call(iterable);
if (_.isArguments(iterable)) return slice.call(iterable);
return _.values(iterable);